ferrous matrix; high speed steel; LiMaRC - Liège Materials Research Center
Abstract :
[en] Two ferrous matrix, a high speed steel and a maraging steel has been reinforced with alumina, titanium and vanadium carbides. The composite was realized by powder metallurgy.The particles were mechanically mixed with the prealloyed powder before compaction. To optimize the composite properties, the processing parameters (i.e. prealloyed powders, size, mixing conditions, temperature of sintering, e..) and the effect of reinforcement (size and composition of particles, volume, fraction, ..) were studied. It is necessary to obtain a full density with the minimum porosities and to control boht the size, the distribution and the dispersion of the reinforced particles. The optimal sintering temperature depends on the reinforcement particles used and is of great importance for the properties. Processing parameters (mixing of particules) can greatly affect the final properties. It has been showed that the use of M203 increases the wear resistance in the two matrix.
Disciplines :
Materials science & engineering
Author, co-author :
Lecomte-Beckers, Jacqueline ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Magnée, Adrien ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique
Language :
English
Title :
Microstructure and properties of PM steel reinforced by dispersed oxides and carbides phases
Publication date :
1998
Event name :
ECCM-8, European Conference on Composite Materials : Science, Technologies and Applications
Audience :
International
Main work title :
Proceedings of ECCM-8, European Conference on Composite Materials : Science, Technologies and Applications
